ITMI20120872A1 - Leghe getter non evaporabili particolarmente adatte per l'assorbimento di idrogeno e azoto - Google Patents
Leghe getter non evaporabili particolarmente adatte per l'assorbimento di idrogeno e azoto Download PDFInfo
- Publication number
- ITMI20120872A1 ITMI20120872A1 IT000872A ITMI20120872A ITMI20120872A1 IT MI20120872 A1 ITMI20120872 A1 IT MI20120872A1 IT 000872 A IT000872 A IT 000872A IT MI20120872 A ITMI20120872 A IT MI20120872A IT MI20120872 A1 ITMI20120872 A1 IT MI20120872A1
- Authority
- IT
- Italy
- Prior art keywords
- alloy
- getter
- hydrogen
- composition
- getter device
- Prior art date
Links
- 229910045601 alloy Inorganic materials 0.000 title claims description 68
- 239000000956 alloy Substances 0.000 title claims description 68
- 239000001257 hydrogen Substances 0.000 title claims description 41
- 229910052739 hydrogen Inorganic materials 0.000 title claims description 41
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims description 38
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical class [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims description 35
- 238000010521 absorption reaction Methods 0.000 title claims description 21
- 229910052757 nitrogen Inorganic materials 0.000 title claims description 19
- 229910000986 non-evaporable getter Inorganic materials 0.000 title claims description 11
- 239000000203 mixture Substances 0.000 claims description 34
- 239000000843 powder Substances 0.000 claims description 25
- 229910052720 vanadium Inorganic materials 0.000 claims description 15
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 11
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 11
- 239000007789 gas Substances 0.000 claims description 11
- 239000010936 titanium Substances 0.000 claims description 11
- 229910052719 titanium Inorganic materials 0.000 claims description 11
- 229910052726 zirconium Inorganic materials 0.000 claims description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 150000002431 hydrogen Chemical class 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 239000011651 chromium Substances 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 2
- 239000000463 material Substances 0.000 description 16
- 239000000243 solution Substances 0.000 description 8
- 230000008901 benefit Effects 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910004688 Ti-V Inorganic materials 0.000 description 2
- 229910010968 Ti—V Inorganic materials 0.000 description 2
- 239000003708 ampul Substances 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 239000012300 argon atmosphere Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- -1 for example Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 230000028016 temperature homeostasis Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
- H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
- H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
- H01J7/183—Composition or manufacture of getters
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Gas Separation By Absorption (AREA)
- Powder Metallurgy (AREA)
- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
- Discharge Lamp (AREA)
- Hydrogen, Water And Hydrids (AREA)
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000872A ITMI20120872A1 (it) | 2012-05-21 | 2012-05-21 | Leghe getter non evaporabili particolarmente adatte per l'assorbimento di idrogeno e azoto |
| CN201380026235.1A CN104335316B (zh) | 2012-05-21 | 2013-05-13 | 特别适用于氢和氮吸附的非蒸发性吸气剂合金 |
| KR1020147032444A KR101564871B1 (ko) | 2012-05-21 | 2013-05-13 | 수소 및 질소 흡착에 특히 적절한 비-증발형 게터 합금 |
| JP2015513308A JP5826970B2 (ja) | 2012-05-21 | 2013-05-13 | 水素および窒素の吸着に特に適する不揮発性ゲッター合金 |
| ES13730355.8T ES2526545T3 (es) | 2012-05-21 | 2013-05-13 | Aleaciones getter no evaporables particularmente adecuadas para la sorción de hidrógeno y nitrógeno |
| MYPI2014703425A MY163229A (en) | 2012-05-21 | 2013-05-13 | Non-evaporable getter alloys particularly suitable for hydrogen and nitrogen sorption |
| US14/348,350 US8961816B2 (en) | 2012-05-21 | 2013-05-13 | Non-evaporable getter alloys particularly suitable for hydrogen and nitrogen sorption |
| EP13730355.8A EP2745305B1 (en) | 2012-05-21 | 2013-05-13 | Non-evaporable getter alloys particularly suitable for hydrogen and nitrogen sorption |
| PCT/IB2013/053874 WO2013175340A1 (en) | 2012-05-21 | 2013-05-13 | Non-evaporable getter alloys particularly suitable for hydrogen and nitrogen sorption |
| TW102117538A TWI600464B (zh) | 2012-05-21 | 2013-05-17 | 特別適合吸著氫和氮的非可蒸發性吸氣劑合金 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000872A ITMI20120872A1 (it) | 2012-05-21 | 2012-05-21 | Leghe getter non evaporabili particolarmente adatte per l'assorbimento di idrogeno e azoto |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ITMI20120872A1 true ITMI20120872A1 (it) | 2013-11-22 |
Family
ID=46548646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT000872A ITMI20120872A1 (it) | 2012-05-21 | 2012-05-21 | Leghe getter non evaporabili particolarmente adatte per l'assorbimento di idrogeno e azoto |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US8961816B2 (zh) |
| EP (1) | EP2745305B1 (zh) |
| JP (1) | JP5826970B2 (zh) |
| KR (1) | KR101564871B1 (zh) |
| CN (1) | CN104335316B (zh) |
| ES (1) | ES2526545T3 (zh) |
| IT (1) | ITMI20120872A1 (zh) |
| MY (1) | MY163229A (zh) |
| TW (1) | TWI600464B (zh) |
| WO (1) | WO2013175340A1 (zh) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMI20122092A1 (it) * | 2012-12-10 | 2014-06-11 | Getters Spa | Leghe getter non evaporabili riattivabili dopo l'esposizione a gas reattivi |
| ITMI20131921A1 (it) | 2013-11-20 | 2015-05-21 | Getters Spa | Leghe getter non evaporabili particolarmente adatte per l'assorbimento di idrogeno e monossido di carbonio |
| WO2015198235A1 (en) | 2014-06-26 | 2015-12-30 | Saes Getters S.P.A. | Getter pumping system |
| ITUA20163861A1 (it) * | 2016-05-27 | 2017-11-27 | Getters Spa | Non-evaporable getter alloys particularly suitable for hydrogen and carbon monoxide sorption |
| CN108149069A (zh) * | 2016-12-02 | 2018-06-12 | 北京有色金属研究总院 | 一种吸气合金材料及其应用 |
| CN108411142A (zh) * | 2018-04-22 | 2018-08-17 | 雷春生 | 一种自激活吸气剂的制备方法 |
| CN112410639A (zh) * | 2020-10-16 | 2021-02-26 | 北京赛博泰科科技有限公司 | 一种非蒸散型低温激活宽程工作吸气合金及其制备方法 |
| CN113136504B (zh) * | 2021-04-24 | 2022-07-19 | 杨阳 | 吸气合金及其应用、吸气靶材及吸气薄膜 |
| CN114150202A (zh) * | 2021-11-02 | 2022-03-08 | 南京恩瑞科技有限公司 | 一种五元钛合金非蒸散型吸气剂的制备方法 |
| CN114934205B (zh) * | 2022-05-24 | 2023-05-05 | 西北工业大学 | 一种镍基高温合金高纯净度化的熔炼方法 |
| EP4392673A1 (en) | 2022-08-01 | 2024-07-03 | Saes Getters S.p.A. | Snap-on getter pump assembly and its use |
| WO2024165431A1 (en) | 2023-02-09 | 2024-08-15 | Saes Getters S.P.A. | Auxiliary vacuum pumps combination system |
| KR102710602B1 (ko) * | 2023-09-01 | 2024-09-27 | 주식회사 에프알디 | 제논 및 크립톤의 분리정제방법 |
| CN117732421A (zh) * | 2024-02-21 | 2024-03-22 | 有研工程技术研究院有限公司 | 一种新型大孔隙、高强度、高抽速吸气剂及其制备方法 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5814241A (en) * | 1994-12-29 | 1998-09-29 | Tovarischetstvo S Organichennoi Otvetstvennostju "Tekhnovakt" | Non-vaporizing getter and method of obtaining the same |
| WO1998043763A1 (en) * | 1997-03-28 | 1998-10-08 | Tovarischestvo S Ogranichennoi Otvetstvennostju 'tekhnovak+' | A method for producing a non-evaporable getter and a getter produced by said method |
| US20040253476A1 (en) * | 2003-06-11 | 2004-12-16 | Andrea Conte | Multilayer getter structures and methods for making same |
| US20050169766A1 (en) * | 2002-09-13 | 2005-08-04 | Saes Getters S.P.A. | Getter compositions reactivatable at low temperature after exposure to reactive gases at higher temperature |
| EP2071188A1 (en) * | 2007-12-10 | 2009-06-17 | VARIAN S.p.A. | Device for the deposition of non-evaporable getters (NEGs) and method of deposition using said device |
Family Cites Families (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3740830A (en) * | 1969-09-29 | 1973-06-26 | Xerox Corp | Brazing ceramics |
| US3666429A (en) * | 1969-09-29 | 1972-05-30 | Xerox Corp | Metallized and brazed ceramics |
| US4360445A (en) | 1981-06-16 | 1982-11-23 | The United States Of America As Represented By The United States Department Of Energy | Oxygen stabilized zirconium-vanadium-iron alloy |
| US4849205A (en) * | 1987-11-17 | 1989-07-18 | Kuochih Hong | Hydrogen storage hydride electrode materials |
| CN1015645B (zh) * | 1989-09-07 | 1992-02-26 | 安守环 | 非蒸散型低温激活吸气剂及其制造工艺 |
| US5238756A (en) * | 1990-04-26 | 1993-08-24 | Ovonic Battery Company | Electrode alloy having decreased hydrogen overpressure and/or low self-discharge |
| US5238469A (en) | 1992-04-02 | 1993-08-24 | Saes Pure Gas, Inc. | Method and apparatus for removing residual hydrogen from a purified gas |
| IT1255438B (it) * | 1992-07-17 | 1995-10-31 | Getters Spa | Pompa getter non evaporabile |
| TW287117B (zh) | 1994-12-02 | 1996-10-01 | Getters Spa | |
| DE19630531C2 (de) * | 1996-07-29 | 1998-08-20 | Georg Wiegner | Spender zum Austragen eines fließfähigen Mediums |
| US6673400B1 (en) * | 1996-10-15 | 2004-01-06 | Texas Instruments Incorporated | Hydrogen gettering system |
| IT1290451B1 (it) | 1997-04-03 | 1998-12-03 | Getters Spa | Leghe getter non evaporabili |
| IT1295340B1 (it) * | 1997-10-15 | 1999-05-12 | Getters Spa | Pompa getter ad elevata velocita' di assorbimento di gas |
| US7045958B2 (en) * | 2003-04-14 | 2006-05-16 | Hewlett-Packard Development Company, L.P. | Vacuum device having a getter |
| US6988924B2 (en) * | 2003-04-14 | 2006-01-24 | Hewlett-Packard Development Company, L.P. | Method of making a getter structure |
| US20050085053A1 (en) * | 2003-10-20 | 2005-04-21 | Chien-Hua Chen | Method of activating a getter structure |
| US7508132B2 (en) * | 2003-10-20 | 2009-03-24 | Hewlett-Packard Development Company, L.P. | Device having a getter structure and a photomask |
| EP1704576B1 (en) | 2004-01-05 | 2010-05-05 | Koninklijke Philips Electronics N.V. | Method of manufacturing a compact high-pressure discharge lamp |
| DK1896379T3 (da) * | 2005-06-27 | 2010-05-10 | Leuven K U Res & Dev | Fremgangsmåde til fremstilling af sintrede porøse materialer |
| GB0523838D0 (en) * | 2005-11-23 | 2006-01-04 | Oxford Instr Analytical Ltd | X-Ray detector and method |
| US20090001537A1 (en) * | 2007-06-27 | 2009-01-01 | Innovative Micro Technology | Gettering material for encapsulated microdevices and method of manufacture |
| ITMI20090402A1 (it) | 2009-03-17 | 2010-09-18 | Getters Spa | Sistema di pompaggio combinato comprendente una pompa getter ed una pompa ionica |
| ITMI20090410A1 (it) | 2009-03-18 | 2010-09-19 | Getters Spa | Leghe getter non evaporabili adatte particolarmente per l'assorbimento di idrogeno |
-
2012
- 2012-05-21 IT IT000872A patent/ITMI20120872A1/it unknown
-
2013
- 2013-05-13 KR KR1020147032444A patent/KR101564871B1/ko active IP Right Grant
- 2013-05-13 WO PCT/IB2013/053874 patent/WO2013175340A1/en active Application Filing
- 2013-05-13 CN CN201380026235.1A patent/CN104335316B/zh active Active
- 2013-05-13 US US14/348,350 patent/US8961816B2/en active Active
- 2013-05-13 EP EP13730355.8A patent/EP2745305B1/en active Active
- 2013-05-13 JP JP2015513308A patent/JP5826970B2/ja active Active
- 2013-05-13 ES ES13730355.8T patent/ES2526545T3/es active Active
- 2013-05-13 MY MYPI2014703425A patent/MY163229A/en unknown
- 2013-05-17 TW TW102117538A patent/TWI600464B/zh active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5814241A (en) * | 1994-12-29 | 1998-09-29 | Tovarischetstvo S Organichennoi Otvetstvennostju "Tekhnovakt" | Non-vaporizing getter and method of obtaining the same |
| WO1998043763A1 (en) * | 1997-03-28 | 1998-10-08 | Tovarischestvo S Ogranichennoi Otvetstvennostju 'tekhnovak+' | A method for producing a non-evaporable getter and a getter produced by said method |
| US20050169766A1 (en) * | 2002-09-13 | 2005-08-04 | Saes Getters S.P.A. | Getter compositions reactivatable at low temperature after exposure to reactive gases at higher temperature |
| US20040253476A1 (en) * | 2003-06-11 | 2004-12-16 | Andrea Conte | Multilayer getter structures and methods for making same |
| EP2071188A1 (en) * | 2007-12-10 | 2009-06-17 | VARIAN S.p.A. | Device for the deposition of non-evaporable getters (NEGs) and method of deposition using said device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104335316B (zh) | 2016-12-07 |
| KR101564871B1 (ko) | 2015-10-30 |
| WO2013175340A1 (en) | 2013-11-28 |
| JP2015525285A (ja) | 2015-09-03 |
| US20140252266A1 (en) | 2014-09-11 |
| CN104335316A (zh) | 2015-02-04 |
| TWI600464B (zh) | 2017-10-01 |
| ES2526545T3 (es) | 2015-01-13 |
| JP5826970B2 (ja) | 2015-12-02 |
| TW201406447A (zh) | 2014-02-16 |
| MY163229A (en) | 2017-08-30 |
| KR20140137466A (ko) | 2014-12-02 |
| EP2745305A1 (en) | 2014-06-25 |
| EP2745305B1 (en) | 2014-11-19 |
| US8961816B2 (en) | 2015-02-24 |
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